Section II - 12
Peripheral Nervous System

The action potential jumps from one myelinated area of the axon to the next. The action potential jumps from one nonmyelinated area of the axon to the next. There are no gaps in a myelinated axon: the action potential jumps from the beginning of the axon to the terminal. Myelin helps the nerve impulse cross the synapse from one myelinated nerve to the next.